Interaction of interplanetary shock waves with the bow shock-magnetopause system

Journal Article · Mon Oct 01 04:00:00 EDT 1979 · J. Geophys. Res.; (United States)

DOI:https://doi.org/10.1029/JA084iA10p05907· OSTI ID:5728516

Grib, S A; Brunelli, B E; Dryer, M; Shen, W

The collision of interplanetary shock waves with the bow-shock-wave-magnetopause system is considered both in the gas-dynamic and magnetohydrodynamic approximations. It is shown that the shock wave is reflected from the magnetopause as a rarefaction wave which, in turn, is reflected from the rearward side of the bow shock. This secondary rarefaction wave arrives at the magnetosphere after a time interval of 3--5 min after the interplanetary shock wave's arrival. The rarefaction wave decreases the flow pressure on the magnetosphere and causes the reverse (i.e., outward) motion of the magnetopause. With the help of an approximate solution of the differential equations the problem of rarefaction wave reflection from the magnetosphere is considered. The law of the subsolar point motion of the magnetosphere during the abrupt shock-like perturbation is obtained. The experimental data confirm the theoretical results.

• Research Organization: LOIZMIRAN, Academy of Sciences, Leningrad, USSR
• OSTI ID: 5728516
• Journal Information: J. Geophys. Res.; (United States), Journal Name: J. Geophys. Res.; (United States) Vol. 84:A10; ISSN JGREA
• Country of Publication: United States
• Language: English

Related Subjects

640203* -- Atmospheric Physics-- Magnetospheric Phenomena-- (-1987)
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
DISTURBANCES
EARTH ATMOSPHERE
FLUID MECHANICS
HYDRODYNAMICS
INTERPLANETARY SPACE
MAGNETOGASDYNAMICS
MAGNETOHYDRODYNAMICS
MAGNETOPAUSE
MAGNETOSPHERE
MECHANICS
SHOCK WAVES
SOLAR ACTIVITY
SOLAR WIND
SPACE
WAVE PROPAGATION